English

The complex of partial bases of a free group

Algebraic Topology 2020-01-08 v1

Abstract

We prove that the simplicial complex whose simplices are the nonempty partial bases of Fn\mathbb{F}_n is homotopy equivalent to a wedge of (n1)(n-1)-spheres. Moreover, we show that it is Cohen-Macaulay.

Keywords

Cite

@article{arxiv.1711.09954,
  title  = {The complex of partial bases of a free group},
  author = {Iván Sadofschi Costa},
  journal= {arXiv preprint arXiv:1711.09954},
  year   = {2020}
}